
//  ---------------------------------------------------------------------------

import Exchange from './abstract/onetrading.js';
import { AuthenticationError, ExchangeError, PermissionDenied, BadRequest, ArgumentsRequired, OrderNotFound, InsufficientFunds, ExchangeNotAvailable, DDoSProtection, InvalidAddress, InvalidOrder } from './base/errors.js';
import { Precise } from './base/Precise.js';
import { TICK_SIZE } from './base/functions/number.js';
import type { Balances, Currencies, Currency, Dict, Int, Market, Num, OHLCV, Order, OrderBook, OrderSide, OrderType, Str, Strings, Ticker, Tickers, Trade, TradingFees, Transaction, int, DepositAddress } from './base/types.js';

//  ---------------------------------------------------------------------------

/**
 * @class onetrading
 * @augments Exchange
 */
export default class onetrading extends Exchange {
    describe () {
        return this.deepExtend (super.describe (), {
            'id': 'onetrading',
            'name': 'One Trading',
            'countries': [ 'AT' ], // Austria
            'rateLimit': 300,
            'version': 'v1',
            'pro': true,
            // new metainfo interface
            'has': {
                'CORS': undefined,
                'spot': true,
                'margin': false,
                'swap': false,
                'future': false,
                'option': false,
                'addMargin': false,
                'cancelAllOrders': true,
                'cancelOrder': true,
                'cancelOrders': true,
                'closeAllPositions': false,
                'closePosition': false,
                'createDepositAddress': true,
                'createOrder': true,
                'createReduceOnlyOrder': false,
                'createStopLimitOrder': true,
                'createStopMarketOrder': false,
                'createStopOrder': true,
                'fetchAccounts': false,
                'fetchBalance': true,
                'fetchBorrowRateHistories': false,
                'fetchBorrowRateHistory': false,
                'fetchClosedOrders': true,
                'fetchCrossBorrowRate': false,
                'fetchCrossBorrowRates': false,
                'fetchCurrencies': true,
                'fetchDeposit': false,
                'fetchDepositAddress': true,
                'fetchDepositAddresses': false,
                'fetchDepositAddressesByNetwork': false,
                'fetchDeposits': true,
                'fetchDepositsWithdrawals': false,
                'fetchFundingHistory': false,
                'fetchFundingRate': false,
                'fetchFundingRateHistory': false,
                'fetchFundingRates': false,
                'fetchIndexOHLCV': false,
                'fetchIsolatedBorrowRate': false,
                'fetchIsolatedBorrowRates': false,
                'fetchLedger': false,
                'fetchLeverage': false,
                'fetchMarginMode': false,
                'fetchMarkets': true,
                'fetchMarkOHLCV': false,
                'fetchMyTrades': true,
                'fetchOHLCV': true,
                'fetchOpenInterestHistory': false,
                'fetchOpenOrders': true,
                'fetchOrder': true,
                'fetchOrderBook': true,
                'fetchOrders': false,
                'fetchOrderTrades': true,
                'fetchPosition': false,
                'fetchPositionHistory': false,
                'fetchPositionMode': false,
                'fetchPositions': false,
                'fetchPositionsForSymbol': false,
                'fetchPositionsHistory': false,
                'fetchPositionsRisk': false,
                'fetchPremiumIndexOHLCV': false,
                'fetchTicker': true,
                'fetchTickers': true,
                'fetchTime': true,
                'fetchTrades': true,
                'fetchTradingFee': false,
                'fetchTradingFees': true,
                'fetchTransactionFee': false,
                'fetchTransactionFees': false,
                'fetchTransactions': false,
                'fetchTransfer': false,
                'fetchTransfers': false,
                'fetchWithdrawal': false,
                'fetchWithdrawals': true,
                'reduceMargin': false,
                'setLeverage': false,
                'setMargin': false,
                'setMarginMode': false,
                'setPositionMode': false,
                'transfer': false,
                'withdraw': true,
            },
            'timeframes': {
                '1m': '1/MINUTES',
                '5m': '5/MINUTES',
                '15m': '15/MINUTES',
                '30m': '30/MINUTES',
                '1h': '1/HOURS',
                '4h': '4/HOURS',
                '1d': '1/DAYS',
                '1w': '1/WEEKS',
                '1M': '1/MONTHS',
            },
            'urls': {
                'logo': 'https://github.com/ccxt/ccxt/assets/43336371/bdbc26fd-02f2-4ca7-9f1e-17333690bb1c',
                'api': {
                    'public': 'https://api.onetrading.com/fast',
                    'private': 'https://api.onetrading.com/fast',
                },
                'www': 'https://onetrading.com/',
                'doc': [
                    'https://docs.onetrading.com',
                ],
                'fees': 'https://onetrading.com/fees',
            },
            'api': {
                'public': {
                    'get': [
                        'currencies',
                        'candlesticks/{instrument_code}',
                        'fees',
                        'instruments',
                        'order-book/{instrument_code}',
                        'market-ticker',
                        'market-ticker/{instrument_code}',
                        'price-ticks/{instrument_code}',
                        'time',
                    ],
                },
                'private': {
                    'get': [
                        'account/balances',
                        'account/deposit/crypto/{currency_code}',
                        'account/deposit/fiat/EUR',
                        'account/deposits',
                        'account/deposits/bitpanda',
                        'account/withdrawals',
                        'account/withdrawals/bitpanda',
                        'account/fees',
                        'account/orders',
                        'account/orders/{order_id}',
                        'account/orders/{order_id}/trades',
                        'account/trades',
                        'account/trades/{trade_id}',
                        'account/trading-volume',
                    ],
                    'post': [
                        'account/deposit/crypto',
                        'account/withdraw/crypto',
                        'account/withdraw/fiat',
                        'account/fees',
                        'account/orders',
                    ],
                    'delete': [
                        'account/orders',
                        'account/orders/{order_id}',
                        'account/orders/client/{client_id}',
                    ],
                },
            },
            'fees': {
                'trading': {
                    'tierBased': true,
                    'percentage': true,
                    'taker': this.parseNumber ('0.0015'),
                    'maker': this.parseNumber ('0.001'),
                    'tiers': [
                        // volume in BTC
                        {
                            'taker': [
                                [ this.parseNumber ('0'), this.parseNumber ('0.0015') ],
                                [ this.parseNumber ('100'), this.parseNumber ('0.0013') ],
                                [ this.parseNumber ('250'), this.parseNumber ('0.0013') ],
                                [ this.parseNumber ('1000'), this.parseNumber ('0.001') ],
                                [ this.parseNumber ('5000'), this.parseNumber ('0.0009') ],
                                [ this.parseNumber ('10000'), this.parseNumber ('0.00075') ],
                                [ this.parseNumber ('20000'), this.parseNumber ('0.00065') ],
                            ],
                            'maker': [
                                [ this.parseNumber ('0'), this.parseNumber ('0.001') ],
                                [ this.parseNumber ('100'), this.parseNumber ('0.001') ],
                                [ this.parseNumber ('250'), this.parseNumber ('0.0009') ],
                                [ this.parseNumber ('1000'), this.parseNumber ('0.00075') ],
                                [ this.parseNumber ('5000'), this.parseNumber ('0.0006') ],
                                [ this.parseNumber ('10000'), this.parseNumber ('0.0005') ],
                                [ this.parseNumber ('20000'), this.parseNumber ('0.0005') ],
                            ],
                        },
                    ],
                },
            },
            'requiredCredentials': {
                'apiKey': true,
                'secret': false,
            },
            'precisionMode': TICK_SIZE,
            'exceptions': {
                'exact': {
                    'INVALID_CLIENT_UUID': InvalidOrder,
                    'ORDER_NOT_FOUND': OrderNotFound,
                    'ONLY_ONE_ERC20_ADDRESS_ALLOWED': InvalidAddress,
                    'DEPOSIT_ADDRESS_NOT_USED': InvalidAddress,
                    'INVALID_CREDENTIALS': AuthenticationError,
                    'MISSING_CREDENTIALS': AuthenticationError,
                    'INVALID_APIKEY': AuthenticationError,
                    'INVALID_SCOPES': AuthenticationError,
                    'INVALID_SUBJECT': AuthenticationError,
                    'INVALID_ISSUER': AuthenticationError,
                    'INVALID_AUDIENCE': AuthenticationError,
                    'INVALID_DEVICE_ID': AuthenticationError,
                    'INVALID_IP_RESTRICTION': AuthenticationError,
                    'APIKEY_REVOKED': AuthenticationError,
                    'APIKEY_EXPIRED': AuthenticationError,
                    'SYNCHRONIZER_TOKEN_MISMATCH': AuthenticationError,
                    'SESSION_EXPIRED': AuthenticationError,
                    'INTERNAL_ERROR': AuthenticationError,
                    'CLIENT_IP_BLOCKED': PermissionDenied,
                    'MISSING_PERMISSION': PermissionDenied,
                    'ILLEGAL_CHARS': BadRequest,
                    'UNSUPPORTED_MEDIA_TYPE': BadRequest,
                    'ACCOUNT_HISTORY_TIME_RANGE_TOO_BIG': BadRequest,
                    'CANDLESTICKS_TIME_RANGE_TOO_BIG': BadRequest,
                    'INVALID_INSTRUMENT_CODE': BadRequest,
                    'INVALID_ORDER_TYPE': BadRequest,
                    'INVALID_UNIT': BadRequest,
                    'INVALID_PERIOD': BadRequest,
                    'INVALID_TIME': BadRequest,
                    'INVALID_DATE': BadRequest,
                    'INVALID_CURRENCY': BadRequest,
                    'INVALID_AMOUNT': BadRequest,
                    'INVALID_PRICE': BadRequest,
                    'INVALID_LIMIT': BadRequest,
                    'INVALID_QUERY': BadRequest,
                    'INVALID_CURSOR': BadRequest,
                    'INVALID_ACCOUNT_ID': BadRequest,
                    'INVALID_SIDE': InvalidOrder,
                    'INVALID_ACCOUNT_HISTORY_FROM_TIME': BadRequest,
                    'INVALID_ACCOUNT_HISTORY_MAX_PAGE_SIZE': BadRequest,
                    'INVALID_ACCOUNT_HISTORY_TIME_PERIOD': BadRequest,
                    'INVALID_ACCOUNT_HISTORY_TO_TIME': BadRequest,
                    'INVALID_CANDLESTICKS_GRANULARITY': BadRequest,
                    'INVALID_CANDLESTICKS_UNIT': BadRequest,
                    'INVALID_ORDER_BOOK_DEPTH': BadRequest,
                    'INVALID_ORDER_BOOK_LEVEL': BadRequest,
                    'INVALID_PAGE_CURSOR': BadRequest,
                    'INVALID_TIME_RANGE': BadRequest,
                    'INVALID_TRADE_ID': BadRequest,
                    'INVALID_UI_ACCOUNT_SETTINGS': BadRequest,
                    'NEGATIVE_AMOUNT': InvalidOrder,
                    'NEGATIVE_PRICE': InvalidOrder,
                    'MIN_SIZE_NOT_SATISFIED': InvalidOrder,
                    'BAD_AMOUNT_PRECISION': InvalidOrder,
                    'BAD_PRICE_PRECISION': InvalidOrder,
                    'BAD_TRIGGER_PRICE_PRECISION': InvalidOrder,
                    'MAX_OPEN_ORDERS_EXCEEDED': BadRequest,
                    'MISSING_PRICE': InvalidOrder,
                    'MISSING_ORDER_TYPE': InvalidOrder,
                    'MISSING_SIDE': InvalidOrder,
                    'MISSING_CANDLESTICKS_PERIOD_PARAM': ArgumentsRequired,
                    'MISSING_CANDLESTICKS_UNIT_PARAM': ArgumentsRequired,
                    'MISSING_FROM_PARAM': ArgumentsRequired,
                    'MISSING_INSTRUMENT_CODE': ArgumentsRequired,
                    'MISSING_ORDER_ID': InvalidOrder,
                    'MISSING_TO_PARAM': ArgumentsRequired,
                    'MISSING_TRADE_ID': ArgumentsRequired,
                    'INVALID_ORDER_ID': OrderNotFound,
                    'NOT_FOUND': OrderNotFound,
                    'INSUFFICIENT_LIQUIDITY': InsufficientFunds,
                    'INSUFFICIENT_FUNDS': InsufficientFunds,
                    'NO_TRADING': ExchangeNotAvailable,
                    'SERVICE_UNAVAILABLE': ExchangeNotAvailable,
                    'GATEWAY_TIMEOUT': ExchangeNotAvailable,
                    'RATELIMIT': DDoSProtection,
                    'CF_RATELIMIT': DDoSProtection,
                    'INTERNAL_SERVER_ERROR': ExchangeError,
                },
                'broad': {
                },
            },
            'commonCurrencies': {
                'MIOTA': 'IOTA', // https://github.com/ccxt/ccxt/issues/7487
            },
            // exchange-specific options
            'options': {
                'fetchTradingFees': {
                    'method': 'fetchPrivateTradingFees', // or 'fetchPublicTradingFees'
                },
                'fiat': [ 'EUR', 'CHF' ],
            },
        });
    }

    /**
     * @method
     * @name onetrading#fetchTime
     * @description fetches the current integer timestamp in milliseconds from the exchange server
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {int} the current integer timestamp in milliseconds from the exchange server
     */
    async fetchTime (params = {}) {
        const response = await this.publicGetTime (params);
        //
        //     {
        //         "iso": "2020-07-10T05:17:26.716Z",
        //         "epoch_millis": 1594358246716,
        //     }
        //
        return this.safeInteger (response, 'epoch_millis');
    }

    /**
     * @method
     * @name onetrading#fetchCurrencies
     * @description fetches all available currencies on an exchange
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} an associative dictionary of currencies
     */
    async fetchCurrencies (params = {}): Promise<Currencies> {
        const response = await this.publicGetCurrencies (params);
        //
        //     [
        //         {
        //             "code":"BEST",
        //             "precision":8
        //         }
        //     ]
        //
        const result: Dict = {};
        for (let i = 0; i < response.length; i++) {
            const currency = response[i];
            const id = this.safeString (currency, 'code');
            const code = this.safeCurrencyCode (id);
            result[code] = {
                'id': id,
                'code': code,
                'name': undefined,
                'info': currency, // the original payload
                'active': undefined,
                'fee': undefined,
                'precision': this.parseNumber (this.parsePrecision (this.safeString (currency, 'precision'))),
                'withdraw': undefined,
                'deposit': undefined,
                'limits': {
                    'amount': { 'min': undefined, 'max': undefined },
                    'withdraw': { 'min': undefined, 'max': undefined },
                },
                'networks': {},
            };
        }
        return result;
    }

    /**
     * @method
     * @name onetrading#fetchMarkets
     * @description retrieves data on all markets for onetrading
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object[]} an array of objects representing market data
     */
    async fetchMarkets (params = {}): Promise<Market[]> {
        const response = await this.publicGetInstruments (params);
        //
        //     [
        //         {
        //             "state": "ACTIVE",
        //             "base": { code: "ETH", precision: 8 },
        //             "quote": { code: "CHF", precision: 2 },
        //             "amount_precision": 4,
        //             "market_precision": 2,
        //             "min_size": "10.0"
        //         }
        //     ]
        //
        return this.parseMarkets (response);
    }

    parseMarket (market: Dict): Market {
        const baseAsset = this.safeValue (market, 'base', {});
        const quoteAsset = this.safeValue (market, 'quote', {});
        const baseId = this.safeString (baseAsset, 'code');
        const quoteId = this.safeString (quoteAsset, 'code');
        const id = baseId + '_' + quoteId;
        const base = this.safeCurrencyCode (baseId);
        const quote = this.safeCurrencyCode (quoteId);
        const state = this.safeString (market, 'state');
        return {
            'id': id,
            'symbol': base + '/' + quote,
            'base': base,
            'quote': quote,
            'settle': undefined,
            'baseId': baseId,
            'quoteId': quoteId,
            'settleId': undefined,
            'type': 'spot',
            'spot': true,
            'margin': false,
            'swap': false,
            'future': false,
            'option': false,
            'active': (state === 'ACTIVE'),
            'contract': false,
            'linear': undefined,
            'inverse': undefined,
            'contractSize': undefined,
            'expiry': undefined,
            'expiryDatetime': undefined,
            'strike': undefined,
            'optionType': undefined,
            'precision': {
                'amount': this.parseNumber (this.parsePrecision (this.safeString (market, 'amount_precision'))),
                'price': this.parseNumber (this.parsePrecision (this.safeString (market, 'market_precision'))),
            },
            'limits': {
                'leverage': {
                    'min': undefined,
                    'max': undefined,
                },
                'amount': {
                    'min': undefined,
                    'max': undefined,
                },
                'price': {
                    'min': undefined,
                    'max': undefined,
                },
                'cost': {
                    'min': this.safeNumber (market, 'min_size'),
                    'max': undefined,
                },
            },
            'created': undefined,
            'info': market,
        };
    }

    /**
     * @method
     * @name onetrading#fetchTradingFees
     * @description fetch the trading fees for multiple markets
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} a dictionary of [fee structures]{@link https://docs.ccxt.com/#/?id=fee-structure} indexed by market symbols
     */
    async fetchTradingFees (params = {}): Promise<TradingFees> {
        let method = this.safeString (params, 'method');
        params = this.omit (params, 'method');
        if (method === undefined) {
            const options = this.safeValue (this.options, 'fetchTradingFees', {});
            method = this.safeString (options, 'method', 'fetchPrivateTradingFees');
        }
        return await this[method] (params);
    }

    async fetchPublicTradingFees (params = {}) {
        await this.loadMarkets ();
        const response = await this.publicGetFees (params);
        //
        //     [
        //         {
        //             "fee_group_id":"default",
        //             "display_text":"The standard fee plan.",
        //             "fee_tiers":[
        //                 {"volume":"0.0","fee_group_id":"default","maker_fee":"0.1","taker_fee":"0.15"},
        //                 {"volume":"100.0","fee_group_id":"default","maker_fee":"0.1","taker_fee":"0.13"},
        //                 {"volume":"250.0","fee_group_id":"default","maker_fee":"0.09","taker_fee":"0.13"},
        //                 {"volume":"1000.0","fee_group_id":"default","maker_fee":"0.075","taker_fee":"0.1"},
        //                 {"volume":"5000.0","fee_group_id":"default","maker_fee":"0.06","taker_fee":"0.09"},
        //                 {"volume":"10000.0","fee_group_id":"default","maker_fee":"0.05","taker_fee":"0.075"},
        //                 {"volume":"20000.0","fee_group_id":"default","maker_fee":"0.05","taker_fee":"0.065"}
        //             ],
        //             "fee_discount_rate":"25.0",
        //             "minimum_price_value":"0.12"
        //         }
        //     ]
        //
        const first = this.safeValue (response, 0, {});
        const feeTiers = this.safeValue (first, 'fee_tiers');
        const tiers = this.parseFeeTiers (feeTiers);
        const firstTier = this.safeValue (feeTiers, 0, {});
        const result: Dict = {};
        for (let i = 0; i < this.symbols.length; i++) {
            const symbol = this.symbols[i];
            result[symbol] = {
                'info': first,
                'symbol': symbol,
                'maker': this.safeNumber (firstTier, 'maker_fee'),
                'taker': this.safeNumber (firstTier, 'taker_fee'),
                'percentage': true,
                'tierBased': true,
                'tiers': tiers,
            };
        }
        return result;
    }

    async fetchPrivateTradingFees (params = {}) {
        await this.loadMarkets ();
        const response = await this.privateGetAccountFees (params);
        //
        //     {
        //         "account_id": "ed524d00-820a-11e9-8f1e-69602df16d85",
        //         "running_trading_volume": "0.0",
        //         "fee_group_id": "default",
        //         "collect_fees_in_best": false,
        //         "fee_discount_rate": "25.0",
        //         "minimum_price_value": "0.12",
        //         "fee_tiers": [
        //             { "volume": "0.0", "fee_group_id": "default", "maker_fee": "0.1", "taker_fee": "0.1" },
        //             { "volume": "100.0", "fee_group_id": "default", "maker_fee": "0.09", "taker_fee": "0.1" },
        //             { "volume": "250.0", "fee_group_id": "default", "maker_fee": "0.08", "taker_fee": "0.1" },
        //             { "volume": "1000.0", "fee_group_id": "default", "maker_fee": "0.07", "taker_fee": "0.09" },
        //             { "volume": "5000.0", "fee_group_id": "default", "maker_fee": "0.06", "taker_fee": "0.08" },
        //             { "volume": "10000.0", "fee_group_id": "default", "maker_fee": "0.05", "taker_fee": "0.07" },
        //             { "volume": "20000.0", "fee_group_id": "default", "maker_fee": "0.05", "taker_fee": "0.06" },
        //             { "volume": "50000.0", "fee_group_id": "default", "maker_fee": "0.05", "taker_fee": "0.05" }
        //         ],
        //         "active_fee_tier": { "volume": "0.0", "fee_group_id": "default", "maker_fee": "0.1", "taker_fee": "0.1" }
        //     }
        //
        const activeFeeTier = this.safeValue (response, 'active_fee_tier', {});
        let makerFee = this.safeString (activeFeeTier, 'maker_fee');
        let takerFee = this.safeString (activeFeeTier, 'taker_fee');
        makerFee = Precise.stringDiv (makerFee, '100');
        takerFee = Precise.stringDiv (takerFee, '100');
        const feeTiers = this.safeValue (response, 'fee_tiers');
        const result: Dict = {};
        const tiers = this.parseFeeTiers (feeTiers);
        for (let i = 0; i < this.symbols.length; i++) {
            const symbol = this.symbols[i];
            result[symbol] = {
                'info': response,
                'symbol': symbol,
                'maker': this.parseNumber (makerFee),
                'taker': this.parseNumber (takerFee),
                'percentage': true,
                'tierBased': true,
                'tiers': tiers,
            };
        }
        return result;
    }

    parseFeeTiers (feeTiers, market: Market = undefined) {
        const takerFees = [];
        const makerFees = [];
        for (let i = 0; i < feeTiers.length; i++) {
            const tier = feeTiers[i];
            const volume = this.safeNumber (tier, 'volume');
            let taker = this.safeString (tier, 'taker_fee');
            let maker = this.safeString (tier, 'maker_fee');
            maker = Precise.stringDiv (maker, '100');
            taker = Precise.stringDiv (taker, '100');
            makerFees.push ([ volume, this.parseNumber (maker) ]);
            takerFees.push ([ volume, this.parseNumber (taker) ]);
        }
        return {
            'maker': makerFees,
            'taker': takerFees,
        };
    }

    parseTicker (ticker: Dict, market: Market = undefined): Ticker {
        //
        // fetchTicker, fetchTickers
        //
        //     {
        //         "instrument_code":"BTC_EUR",
        //         "sequence":602562,
        //         "time":"2020-07-10T06:27:34.951Z",
        //         "state":"ACTIVE",
        //         "is_frozen":0,
        //         "quote_volume":"1695555.1783768",
        //         "base_volume":"205.67436",
        //         "last_price":"8143.91",
        //         "best_bid":"8143.71",
        //         "best_ask":"8156.9",
        //         "price_change":"-147.47",
        //         "price_change_percentage":"-1.78",
        //         "high":"8337.45",
        //         "low":"8110.0"
        //     }
        //
        const timestamp = this.parse8601 (this.safeString (ticker, 'time'));
        const marketId = this.safeString (ticker, 'instrument_code');
        const symbol = this.safeSymbol (marketId, market, '_');
        const last = this.safeString (ticker, 'last_price');
        const percentage = this.safeString (ticker, 'price_change_percentage');
        const change = this.safeString (ticker, 'price_change');
        const baseVolume = this.safeString (ticker, 'base_volume');
        const quoteVolume = this.safeString (ticker, 'quote_volume');
        return this.safeTicker ({
            'symbol': symbol,
            'timestamp': timestamp,
            'datetime': this.iso8601 (timestamp),
            'high': this.safeString (ticker, 'high'),
            'low': this.safeString (ticker, 'low'),
            'bid': this.safeString (ticker, 'best_bid'),
            'bidVolume': undefined,
            'ask': this.safeString (ticker, 'best_ask'),
            'askVolume': undefined,
            'vwap': undefined,
            'open': undefined,
            'close': last,
            'last': last,
            'previousClose': undefined,
            'change': change,
            'percentage': percentage,
            'average': undefined,
            'baseVolume': baseVolume,
            'quoteVolume': quoteVolume,
            'info': ticker,
        }, market);
    }

    /**
     * @method
     * @name onetrading#fetchTicker
     * @description fetches a price ticker, a statistical calculation with the information calculated over the past 24 hours for a specific market
     * @param {string} symbol unified symbol of the market to fetch the ticker for
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} a [ticker structure]{@link https://docs.ccxt.com/#/?id=ticker-structure}
     */
    async fetchTicker (symbol: string, params = {}): Promise<Ticker> {
        await this.loadMarkets ();
        const market = this.market (symbol);
        const request: Dict = {
            'instrument_code': market['id'],
        };
        const response = await this.publicGetMarketTickerInstrumentCode (this.extend (request, params));
        //
        //     {
        //         "instrument_code":"BTC_EUR",
        //         "sequence":602562,
        //         "time":"2020-07-10T06:27:34.951Z",
        //         "state":"ACTIVE",
        //         "is_frozen":0,
        //         "quote_volume":"1695555.1783768",
        //         "base_volume":"205.67436",
        //         "last_price":"8143.91",
        //         "best_bid":"8143.71",
        //         "best_ask":"8156.9",
        //         "price_change":"-147.47",
        //         "price_change_percentage":"-1.78",
        //         "high":"8337.45",
        //         "low":"8110.0"
        //     }
        //
        return this.parseTicker (response, market);
    }

    /**
     * @method
     * @name onetrading#fetchTickers
     * @description fetches price tickers for multiple markets, statistical information calculated over the past 24 hours for each market
     * @param {string[]|undefined} symbols unified symbols of the markets to fetch the ticker for, all market tickers are returned if not assigned
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} a dictionary of [ticker structures]{@link https://docs.ccxt.com/#/?id=ticker-structure}
     */
    async fetchTickers (symbols: Strings = undefined, params = {}): Promise<Tickers> {
        await this.loadMarkets ();
        symbols = this.marketSymbols (symbols);
        const response = await this.publicGetMarketTicker (params);
        //
        //     [
        //         {
        //             "instrument_code":"BTC_EUR",
        //             "sequence":602562,
        //             "time":"2020-07-10T06:27:34.951Z",
        //             "state":"ACTIVE",
        //             "is_frozen":0,
        //             "quote_volume":"1695555.1783768",
        //             "base_volume":"205.67436",
        //             "last_price":"8143.91",
        //             "best_bid":"8143.71",
        //             "best_ask":"8156.9",
        //             "price_change":"-147.47",
        //             "price_change_percentage":"-1.78",
        //             "high":"8337.45",
        //             "low":"8110.0"
        //         }
        //     ]
        //
        const result: Dict = {};
        for (let i = 0; i < response.length; i++) {
            const ticker = this.parseTicker (response[i]);
            const symbol = ticker['symbol'];
            result[symbol] = ticker;
        }
        return this.filterByArrayTickers (result, 'symbol', symbols);
    }

    /**
     * @method
     * @name onetrading#fetchOrderBook
     * @description fetches information on open orders with bid (buy) and ask (sell) prices, volumes and other data
     * @param {string} symbol unified symbol of the market to fetch the order book for
     * @param {int} [limit] the maximum amount of order book entries to return
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} A dictionary of [order book structures]{@link https://docs.ccxt.com/#/?id=order-book-structure} indexed by market symbols
     */
    async fetchOrderBook (symbol: string, limit: Int = undefined, params = {}): Promise<OrderBook> {
        await this.loadMarkets ();
        const market = this.market (symbol);
        const request: Dict = {
            'instrument_code': market['id'],
            // level 1 means only the best bid and ask
            // level 2 is a compiled order book up to market precision
            // level 3 is a full orderbook
            // if you wish to get regular updates about orderbooks please use the Websocket channel
            // heavy usage of this endpoint may result in limited access according to rate limits rules
            // 'level': 3, // default
        };
        if (limit !== undefined) {
            request['depth'] = limit;
        }
        const response = await this.publicGetOrderBookInstrumentCode (this.extend (request, params));
        //
        // level 1
        //
        //     {
        //         "instrument_code":"BTC_EUR",
        //         "time":"2020-07-10T07:39:06.343Z",
        //         "asks":{
        //             "value":{
        //                 "price":"8145.29",
        //                 "amount":"0.96538",
        //                 "number_of_orders":1
        //             }
        //         },
        //         "bids":{
        //             "value":{
        //                 "price":"8134.0",
        //                 "amount":"1.5978",
        //                 "number_of_orders":5
        //             }
        //         }
        //     }
        //
        // level 2
        //
        //     {
        //         "instrument_code":"BTC_EUR","time":"2020-07-10T07:36:43.538Z",
        //         "asks":[
        //             {"price":"8146.59","amount":"0.89691","number_of_orders":1},
        //             {"price":"8146.89","amount":"1.92062","number_of_orders":1},
        //             {"price":"8169.5","amount":"0.0663","number_of_orders":1},
        //         ],
        //         "bids":[
        //             {"price":"8143.49","amount":"0.01329","number_of_orders":1},
        //             {"price":"8137.01","amount":"5.34748","number_of_orders":1},
        //             {"price":"8137.0","amount":"2.0","number_of_orders":1},
        //         ]
        //     }
        //
        // level 3
        //
        //     {
        //         "instrument_code":"BTC_EUR",
        //         "time":"2020-07-10T07:32:31.525Z",
        //         "bids":[
        //             {"price":"8146.79","amount":"0.01537","order_id":"5d717da1-a8f4-422d-afcc-03cb6ab66825"},
        //             {"price":"8139.32","amount":"3.66009","order_id":"d0715c68-f28d-4cf1-a450-d56cf650e11c"},
        //             {"price":"8137.51","amount":"2.61049","order_id":"085fd6f4-e835-4ca5-9449-a8f165772e60"},
        //         ],
        //         "asks":[
        //             {"price":"8153.49","amount":"0.93384","order_id":"755d3aa3-42b5-46fa-903d-98f42e9ae6c4"},
        //             {"price":"8153.79","amount":"1.80456","order_id":"62034cf3-b70d-45ff-b285-ba6307941e7c"},
        //             {"price":"8167.9","amount":"0.0018","order_id":"036354e0-71cd-492f-94f2-01f7d4b66422"},
        //         ]
        //     }
        //
        const timestamp = this.parse8601 (this.safeString (response, 'time'));
        return this.parseOrderBook (response, market['symbol'], timestamp, 'bids', 'asks', 'price', 'amount');
    }

    parseOHLCV (ohlcv, market: Market = undefined): OHLCV {
        //
        //     {
        //         "instrument_code":"BTC_EUR",
        //         "granularity":{"unit":"HOURS","period":1},
        //         "high":"9252.65",
        //         "low":"9115.27",
        //         "open":"9250.0",
        //         "close":"9132.35",
        //         "total_amount":"33.85924",
        //         "volume":"311958.9635744",
        //         "time":"2020-05-08T22:59:59.999Z",
        //         "last_sequence":461123
        //     }
        //
        const granularity = this.safeValue (ohlcv, 'granularity');
        const unit = this.safeString (granularity, 'unit');
        const period = this.safeString (granularity, 'period');
        const units: Dict = {
            'MINUTES': 'm',
            'HOURS': 'h',
            'DAYS': 'd',
            'WEEKS': 'w',
            'MONTHS': 'M',
        };
        const lowercaseUnit = this.safeString (units, unit);
        const timeframe = period + lowercaseUnit;
        const durationInSeconds = this.parseTimeframe (timeframe);
        const duration = durationInSeconds * 1000;
        const timestamp = this.parse8601 (this.safeString (ohlcv, 'time'));
        const alignedTimestamp = duration * this.parseToInt (timestamp / duration);
        const options = this.safeValue (this.options, 'fetchOHLCV', {});
        const volumeField = this.safeString (options, 'volume', 'total_amount');
        return [
            alignedTimestamp,
            this.safeNumber (ohlcv, 'open'),
            this.safeNumber (ohlcv, 'high'),
            this.safeNumber (ohlcv, 'low'),
            this.safeNumber (ohlcv, 'close'),
            this.safeNumber (ohlcv, volumeField),
        ];
    }

    /**
     * @method
     * @name onetrading#fetchOHLCV
     * @description fetches historical candlestick data containing the open, high, low, and close price, and the volume of a market
     * @param {string} symbol unified symbol of the market to fetch OHLCV data for
     * @param {string} timeframe the length of time each candle represents
     * @param {int} [since] timestamp in ms of the earliest candle to fetch
     * @param {int} [limit] the maximum amount of candles to fetch
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {int[][]} A list of candles ordered as timestamp, open, high, low, close, volume
     */
    async fetchOHLCV (symbol: string, timeframe = '1m', since: Int = undefined, limit: Int = undefined, params = {}): Promise<OHLCV[]> {
        await this.loadMarkets ();
        const market = this.market (symbol);
        const periodUnit = this.safeString (this.timeframes, timeframe);
        const [ period, unit ] = periodUnit.split ('/');
        const durationInSeconds = this.parseTimeframe (timeframe);
        const duration = durationInSeconds * 1000;
        if (limit === undefined) {
            limit = 1500;
        }
        const request: Dict = {
            'instrument_code': market['id'],
            // 'from': this.iso8601 (since),
            // 'to': this.iso8601 (this.milliseconds ()),
            'period': period,
            'unit': unit,
        };
        if (since === undefined) {
            const now = this.milliseconds ();
            request['to'] = this.iso8601 (now);
            request['from'] = this.iso8601 (now - limit * duration);
        } else {
            request['from'] = this.iso8601 (since);
            request['to'] = this.iso8601 (this.sum (since, limit * duration));
        }
        const response = await this.publicGetCandlesticksInstrumentCode (this.extend (request, params));
        //
        //     [
        //         {"instrument_code":"BTC_EUR","granularity":{"unit":"HOURS","period":1},"high":"9252.65","low":"9115.27","open":"9250.0","close":"9132.35","total_amount":"33.85924","volume":"311958.9635744","time":"2020-05-08T22:59:59.999Z","last_sequence":461123},
        //         {"instrument_code":"BTC_EUR","granularity":{"unit":"HOURS","period":1},"high":"9162.49","low":"9040.0","open":"9132.53","close":"9083.69","total_amount":"26.19685","volume":"238553.7812365","time":"2020-05-08T23:59:59.999Z","last_sequence":461376},
        //         {"instrument_code":"BTC_EUR","granularity":{"unit":"HOURS","period":1},"high":"9135.7","low":"9002.59","open":"9055.45","close":"9133.98","total_amount":"26.21919","volume":"238278.8724959","time":"2020-05-09T00:59:59.999Z","last_sequence":461521},
        //     ]
        //
        return this.parseOHLCVs (response, market, timeframe, since, limit);
    }

    parseTrade (trade: Dict, market: Market = undefined): Trade {
        //
        // fetchTrades (public)
        //
        //     {
        //         "instrument_code":"BTC_EUR",
        //         "price":"8137.28",
        //         "amount":"0.22269",
        //         "taker_side":"BUY",
        //         "volume":"1812.0908832",
        //         "time":"2020-07-10T14:44:32.299Z",
        //         "trade_timestamp":1594392272299,
        //         "sequence":603047
        //     }
        //
        // fetchMyTrades, fetchOrder, fetchOpenOrders, fetchClosedOrders trades (private)
        //
        //     {
        //         "fee": {
        //             "fee_amount": "0.0014",
        //             "fee_currency": "BTC",
        //             "fee_percentage": "0.1",
        //             "fee_group_id": "default",
        //             "fee_type": "TAKER",
        //             "running_trading_volume": "0.0"
        //         },
        //         "trade": {
        //             "trade_id": "fdff2bcc-37d6-4a2d-92a5-46e09c868664",
        //             "order_id": "36bb2437-7402-4794-bf26-4bdf03526439",
        //             "account_id": "a4c699f6-338d-4a26-941f-8f9853bfc4b9",
        //             "amount": "1.4",
        //             "side": "BUY",
        //             "instrument_code": "BTC_EUR",
        //             "price": "7341.4",
        //             "time": "2019-09-27T15:05:32.564Z",
        //             "sequence": 48670
        //         }
        //     }
        //
        const feeInfo = this.safeValue (trade, 'fee', {});
        trade = this.safeValue (trade, 'trade', trade);
        let timestamp = this.safeInteger (trade, 'trade_timestamp');
        if (timestamp === undefined) {
            timestamp = this.parse8601 (this.safeString (trade, 'time'));
        }
        const side = this.safeStringLower2 (trade, 'side', 'taker_side');
        const priceString = this.safeString (trade, 'price');
        const amountString = this.safeString (trade, 'amount');
        const costString = this.safeString (trade, 'volume');
        const marketId = this.safeString (trade, 'instrument_code');
        const symbol = this.safeSymbol (marketId, market, '_');
        const feeCostString = this.safeString (feeInfo, 'fee_amount');
        let takerOrMaker = undefined;
        let fee = undefined;
        if (feeCostString !== undefined) {
            const feeCurrencyId = this.safeString (feeInfo, 'fee_currency');
            const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
            const feeRateString = this.safeString (feeInfo, 'fee_percentage');
            fee = {
                'cost': feeCostString,
                'currency': feeCurrencyCode,
                'rate': feeRateString,
            };
            takerOrMaker = this.safeStringLower (feeInfo, 'fee_type');
        }
        return this.safeTrade ({
            'id': this.safeString2 (trade, 'trade_id', 'sequence'),
            'order': this.safeString (trade, 'order_id'),
            'timestamp': timestamp,
            'datetime': this.iso8601 (timestamp),
            'symbol': symbol,
            'type': undefined,
            'side': side,
            'price': priceString,
            'amount': amountString,
            'cost': costString,
            'takerOrMaker': takerOrMaker,
            'fee': fee,
            'info': trade,
        }, market);
    }

    /**
     * @method
     * @name onetrading#fetchTrades
     * @description get the list of most recent trades for a particular symbol
     * @param {string} symbol unified symbol of the market to fetch trades for
     * @param {int} [since] timestamp in ms of the earliest trade to fetch
     * @param {int} [limit] the maximum amount of trades to fetch
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {Trade[]} a list of [trade structures]{@link https://docs.ccxt.com/#/?id=public-trades}
     */
    async fetchTrades (symbol: string, since: Int = undefined, limit: Int = undefined, params = {}): Promise<Trade[]> {
        await this.loadMarkets ();
        const market = this.market (symbol);
        const request: Dict = {
            'instrument_code': market['id'],
            // 'from': this.iso8601 (since),
            // 'to': this.iso8601 (this.milliseconds ()),
        };
        if (since !== undefined) {
            // returns price ticks for a specific market with an interval of maximum of 4 hours
            // sorted by latest first
            request['from'] = this.iso8601 (since);
            request['to'] = this.iso8601 (this.sum (since, 14400000));
        }
        const response = await this.publicGetPriceTicksInstrumentCode (this.extend (request, params));
        //
        //     [
        //         {
        //             "instrument_code":"BTC_EUR",
        //             "price":"8137.28",
        //             "amount":"0.22269",
        //             "taker_side":"BUY",
        //             "volume":"1812.0908832",
        //             "time":"2020-07-10T14:44:32.299Z",
        //             "trade_timestamp":1594392272299,
        //             "sequence":603047
        //         }
        //     ]
        //
        return this.parseTrades (response, market, since, limit);
    }

    parseBalance (response): Balances {
        const balances = this.safeValue (response, 'balances', []);
        const result: Dict = { 'info': response };
        for (let i = 0; i < balances.length; i++) {
            const balance = balances[i];
            const currencyId = this.safeString (balance, 'currency_code');
            const code = this.safeCurrencyCode (currencyId);
            const account = this.account ();
            account['free'] = this.safeString (balance, 'available');
            account['used'] = this.safeString (balance, 'locked');
            result[code] = account;
        }
        return this.safeBalance (result);
    }

    /**
     * @method
     * @name onetrading#fetchBalance
     * @description query for balance and get the amount of funds available for trading or funds locked in orders
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} a [balance structure]{@link https://docs.ccxt.com/#/?id=balance-structure}
     */
    async fetchBalance (params = {}): Promise<Balances> {
        await this.loadMarkets ();
        const response = await this.privateGetAccountBalances (params);
        //
        //     {
        //         "account_id":"4b95934f-55f1-460c-a525-bd5afc0cf071",
        //         "balances":[
        //             {
        //                 "account_id":"4b95934f-55f1-460c-a525-bd5afc0cf071",
        //                 "currency_code":"BTC",
        //                 "change":"10.0",
        //                 "available":"10.0",
        //                 "locked":"0.0",
        //                 "sequence":142135994,
        //                 "time":"2020-07-01T10:57:32.959Z"
        //             }
        //         ]
        //     }
        //
        return this.parseBalance (response);
    }

    parseDepositAddress (depositAddress, currency: Currency = undefined): DepositAddress {
        let code = undefined;
        if (currency !== undefined) {
            code = currency['code'];
        }
        const address = this.safeString (depositAddress, 'address');
        const tag = this.safeString (depositAddress, 'destination_tag');
        this.checkAddress (address);
        return {
            'info': depositAddress,
            'currency': code,
            'network': undefined,
            'address': address,
            'tag': tag,
        } as DepositAddress;
    }

    /**
     * @method
     * @name onetrading#createDepositAddress
     * @description create a currency deposit address
     * @param {string} code unified currency code of the currency for the deposit address
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} an [address structure]{@link https://docs.ccxt.com/#/?id=address-structure}
     */
    async createDepositAddress (code: string, params = {}) {
        await this.loadMarkets ();
        const currency = this.currency (code);
        const request: Dict = {
            'currency': currency['id'],
        };
        const response = await this.privatePostAccountDepositCrypto (this.extend (request, params));
        //
        //     {
        //         "address":"rBnNhk95FrdNisZtXcStzriFS8vEzz53DM",
        //         "destination_tag":"865690307",
        //         "enabled":true,
        //         "is_smart_contract":false
        //     }
        //
        return this.parseDepositAddress (response, currency);
    }

    /**
     * @method
     * @name onetrading#fetchDepositAddress
     * @description fetch the deposit address for a currency associated with this account
     * @param {string} code unified currency code
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} an [address structure]{@link https://docs.ccxt.com/#/?id=address-structure}
     */
    async fetchDepositAddress (code: string, params = {}): Promise<DepositAddress> {
        await this.loadMarkets ();
        const currency = this.currency (code);
        const request: Dict = {
            'currency_code': currency['id'],
        };
        const response = await this.privateGetAccountDepositCryptoCurrencyCode (this.extend (request, params));
        //
        //     {
        //         "address":"rBnNhk95FrdNisZtXcStzriFS8vEzz53DM",
        //         "destination_tag":"865690307",
        //         "enabled":true,
        //         "is_smart_contract":false,
        //         "can_create_more":false
        //     }
        //
        return this.parseDepositAddress (response, currency);
    }

    /**
     * @method
     * @name onetrading#fetchDeposits
     * @description fetch all deposits made to an account
     * @param {string} code unified currency code
     * @param {int} [since] the earliest time in ms to fetch deposits for
     * @param {int} [limit] the maximum number of deposits structures to retrieve
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object[]} a list of [transaction structures]{@link https://docs.ccxt.com/#/?id=transaction-structure}
     */
    async fetchDeposits (code: Str = undefined, since: Int = undefined, limit: Int = undefined, params = {}): Promise<Transaction[]> {
        await this.loadMarkets ();
        const request: Dict = {
            // 'cursor': 'string', // pointer specifying the position from which the next pages should be returned
        };
        let currency = undefined;
        if (code !== undefined) {
            currency = this.currency (code);
            request['currency_code'] = currency['id'];
        }
        if (limit !== undefined) {
            request['max_page_size'] = limit;
        }
        if (since !== undefined) {
            const to = this.safeString (params, 'to');
            if (to === undefined) {
                throw new ArgumentsRequired (this.id + ' fetchDeposits() requires a "to" iso8601 string param with the since argument is specified');
            }
            request['from'] = this.iso8601 (since);
        }
        const response = await this.privateGetAccountDeposits (this.extend (request, params));
        //
        //     {
        //         "deposit_history": [
        //             {
        //                 "transaction_id": "e5342efcd-d5b7-4a56-8e12-b69ffd68c5ef",
        //                 "account_id": "c2d0076a-c20d-41f8-9e9a-1a1d028b2b58",
        //                 "amount": "100",
        //                 "type": "CRYPTO",
        //                 "funds_source": "INTERNAL",
        //                 "time": "2020-04-22T09:57:47Z",
        //                 "currency": "BTC",
        //                 "fee_amount": "0.0",
        //                 "fee_currency": "BTC"
        //             },
        //             {
        //                 "transaction_id": "79793d00-2899-4a4d-95b7-73ae6b31384f",
        //                 "account_id": "c2d0076a-c20d-41f8-9e9a-1a1d028b2b58",
        //                 "time": "2020-05-05T11:22:07.925Z",
        //                 "currency": "EUR",
        //                 "funds_source": "EXTERNAL",
        //                 "type": "FIAT",
        //                 "amount": "50.0",
        //                 "fee_amount": "0.01",
        //                 "fee_currency": "EUR"
        //             }
        //         ],
        //         "max_page_size": 2,
        //         "cursor": "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"
        //     }
        //
        const depositHistory = this.safeList (response, 'deposit_history', []);
        return this.parseTransactions (depositHistory, currency, since, limit, { 'type': 'deposit' });
    }

    /**
     * @method
     * @name onetrading#fetchWithdrawals
     * @description fetch all withdrawals made from an account
     * @param {string} code unified currency code
     * @param {int} [since] the earliest time in ms to fetch withdrawals for
     * @param {int} [limit] the maximum number of withdrawals structures to retrieve
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object[]} a list of [transaction structures]{@link https://docs.ccxt.com/#/?id=transaction-structure}
     */
    async fetchWithdrawals (code: Str = undefined, since: Int = undefined, limit: Int = undefined, params = {}): Promise<Transaction[]> {
        await this.loadMarkets ();
        const request: Dict = {
            // 'cursor': 'string', // pointer specifying the position from which the next pages should be returned
        };
        let currency = undefined;
        if (code !== undefined) {
            currency = this.currency (code);
            request['currency_code'] = currency['id'];
        }
        if (limit !== undefined) {
            request['max_page_size'] = limit;
        }
        if (since !== undefined) {
            const to = this.safeString (params, 'to');
            if (to === undefined) {
                throw new ArgumentsRequired (this.id + ' fetchWithdrawals() requires a "to" iso8601 string param with the since argument is specified');
            }
            request['from'] = this.iso8601 (since);
        }
        const response = await this.privateGetAccountWithdrawals (this.extend (request, params));
        //
        //     {
        //         "withdrawal_history": [
        //             {
        //                 "account_id": "e369ac80-4577-11e9-ae08-9bedc4790b84",
        //                 "amount": "0.1",
        //                 "currency": "BTC",
        //                 "fee_amount": "0.00002",
        //                 "fee_currency": "BTC",
        //                 "funds_source": "EXTERNAL",
        //                 "related_transaction_id": "e298341a-3855-405e-bce3-92db368a3157",
        //                 "time": "2020-05-05T11:11:32.110Z",
        //                 "transaction_id": "6693ff40-bb10-4dcf-ada7-3b287727c882",
        //                 "type": "CRYPTO"
        //             },
        //             {
        //                 "account_id": "e369ac80-4577-11e9-ae08-9bedc4790b84",
        //                 "amount": "0.1",
        //                 "currency": "BTC",
        //                 "fee_amount": "0.0",
        //                 "fee_currency": "BTC",
        //                 "funds_source": "INTERNAL",
        //                 "time": "2020-05-05T10:29:53.464Z",
        //                 "transaction_id": "ec9703b1-954b-4f76-adea-faac66eabc0b",
        //                 "type": "CRYPTO"
        //             }
        //         ],
        //         "cursor": "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",
        //         "max_page_size": 2
        //     }
        //
        const withdrawalHistory = this.safeList (response, 'withdrawal_history', []);
        return this.parseTransactions (withdrawalHistory, currency, since, limit, { 'type': 'withdrawal' });
    }

    /**
     * @method
     * @name onetrading#withdraw
     * @description make a withdrawal
     * @param {string} code unified currency code
     * @param {float} amount the amount to withdraw
     * @param {string} address the address to withdraw to
     * @param {string} tag
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} a [transaction structure]{@link https://docs.ccxt.com/#/?id=transaction-structure}
     */
    async withdraw (code: string, amount: number, address: string, tag = undefined, params = {}): Promise<Transaction> {
        [ tag, params ] = this.handleWithdrawTagAndParams (tag, params);
        this.checkAddress (address);
        await this.loadMarkets ();
        const currency = this.currency (code);
        const request: Dict = {
            'currency': code,
            'amount': this.currencyToPrecision (code, amount),
            // 'payout_account_id': '66756a10-3e86-48f4-9678-b634c4b135b2', // fiat only
            // 'recipient': { // crypto only
            //     'address': address,
            //     // 'destination_tag': '',
            // },
        };
        const options = this.safeValue (this.options, 'fiat', []);
        const isFiat = this.inArray (code, options);
        const method = isFiat ? 'privatePostAccountWithdrawFiat' : 'privatePostAccountWithdrawCrypto';
        if (isFiat) {
            const payoutAccountId = this.safeString (params, 'payout_account_id');
            if (payoutAccountId === undefined) {
                throw new ArgumentsRequired (this.id + ' withdraw() requires a payout_account_id param for fiat ' + code + ' withdrawals');
            }
        } else {
            const recipient: Dict = { 'address': address };
            if (tag !== undefined) {
                recipient['destination_tag'] = tag;
            }
            request['recipient'] = recipient;
        }
        const response = await this[method] (this.extend (request, params));
        //
        // crypto
        //
        //     {
        //         "amount": "1234.5678",
        //         "fee": "1234.5678",
        //         "recipient": "3NacQ7rzZdhfyAtfJ5a11k8jFPdcMP2Bq7",
        //         "destination_tag": "",
        //         "transaction_id": "d0f8529f-f832-4e6a-9dc5-b8d5797badb2"
        //     }
        //
        // fiat
        //
        //     {
        //         "transaction_id": "54236cd0-4413-11e9-93fb-5fea7e5b5df6"
        //     }
        //
        return this.parseTransaction (response, currency);
    }

    parseTransaction (transaction: Dict, currency: Currency = undefined): Transaction {
        //
        // fetchDeposits, fetchWithdrawals
        //
        //     {
        //         "transaction_id": "C2b42efcd-d5b7-4a56-8e12-b69ffd68c5ef",
        //         "type": "FIAT",
        //         "account_id": "c2d0076a-c20d-41f8-9e9a-1a1d028b2b58",
        //         "amount": "1234.5678",
        //         "time": "2019-08-24T14:15:22Z",
        //         "funds_source": "INTERNAL",
        //         "currency": "BTC",
        //         "fee_amount": "1234.5678",
        //         "fee_currency": "BTC",
        //         "blockchain_transaction_id": "f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16",
        //         "related_transaction_id": "e298341a-3855-405e-bce3-92db368a3157"
        //     }
        //
        // withdraw
        //
        //
        //     crypto
        //
        //     {
        //         "amount": "1234.5678",
        //         "fee": "1234.5678",
        //         "recipient": "3NacQ7rzZdhfyAtfJ5a11k8jFPdcMP2Bq7",
        //         "destination_tag": "",
        //         "transaction_id": "d0f8529f-f832-4e6a-9dc5-b8d5797badb2"
        //     }
        //
        //     fiat
        //
        //     {
        //         "transaction_id": "54236cd0-4413-11e9-93fb-5fea7e5b5df6"
        //     }
        //
        const id = this.safeString (transaction, 'transaction_id');
        const amount = this.safeNumber (transaction, 'amount');
        const timestamp = this.parse8601 (this.safeString (transaction, 'time'));
        const currencyId = this.safeString (transaction, 'currency');
        currency = this.safeCurrency (currencyId, currency);
        const status = 'ok'; // the exchange returns cleared transactions only
        const feeCost = this.safeNumber2 (transaction, 'fee_amount', 'fee');
        let fee = undefined;
        const addressTo = this.safeString (transaction, 'recipient');
        const tagTo = this.safeString (transaction, 'destination_tag');
        if (feeCost !== undefined) {
            const feeCurrencyId = this.safeString (transaction, 'fee_currency', currencyId);
            const feeCurrencyCode = this.safeCurrencyCode (feeCurrencyId);
            fee = {
                'cost': feeCost,
                'currency': feeCurrencyCode,
            };
        }
        return {
            'info': transaction,
            'id': id,
            'currency': currency['code'],
            'amount': amount,
            'network': undefined,
            'address': addressTo,
            'addressFrom': undefined,
            'addressTo': addressTo,
            'tag': tagTo,
            'tagFrom': undefined,
            'tagTo': tagTo,
            'status': status,
            'type': undefined,
            'updated': undefined,
            'txid': this.safeString (transaction, 'blockchain_transaction_id'),
            'comment': undefined,
            'internal': undefined,
            'timestamp': timestamp,
            'datetime': this.iso8601 (timestamp),
            'fee': fee,
        } as Transaction;
    }

    parseOrderStatus (status: Str) {
        const statuses: Dict = {
            'FILLED': 'open',
            'FILLED_FULLY': 'closed',
            'FILLED_CLOSED': 'canceled',
            'FILLED_REJECTED': 'rejected',
            'OPEN': 'open',
            'REJECTED': 'rejected',
            'CLOSED': 'canceled',
            'FAILED': 'failed',
            'STOP_TRIGGERED': 'triggered',
        };
        return this.safeString (statuses, status, status);
    }

    parseOrder (order: Dict, market: Market = undefined): Order {
        //
        // createOrder
        //
        //     {
        //         "order_id": "d5492c24-2995-4c18-993a-5b8bf8fffc0d",
        //         "client_id": "d75fb03b-b599-49e9-b926-3f0b6d103206",
        //         "account_id": "a4c699f6-338d-4a26-941f-8f9853bfc4b9",
        //         "instrument_code": "BTC_EUR",
        //         "time": "2019-08-01T08:00:44.026Z",
        //         "side": "BUY",
        //         "price": "5000",
        //         "amount": "1",
        //         "filled_amount": "0.5",
        //         "type": "LIMIT",
        //         "time_in_force": "GOOD_TILL_CANCELLED"
        //     }
        //
        // fetchOrder, fetchOpenOrders, fetchClosedOrders
        //
        //     {
        //         "order": {
        //             "order_id": "66756a10-3e86-48f4-9678-b634c4b135b2",
        //             "account_id": "1eb2ad5d-55f1-40b5-bc92-7dc05869e905",
        //             "instrument_code": "BTC_EUR",
        //             "amount": "1234.5678",
        //             "filled_amount": "1234.5678",
        //             "side": "BUY",
        //             "type": "LIMIT",
        //             "status": "OPEN",
        //             "sequence": 123456789,
        //             "price": "1234.5678",
        //             "average_price": "1234.5678",
        //             "reason": "INSUFFICIENT_FUNDS",
        //             "time": "2019-08-24T14:15:22Z",
        //             "time_in_force": "GOOD_TILL_CANCELLED",
        //             "time_last_updated": "2019-08-24T14:15:22Z",
        //             "expire_after": "2019-08-24T14:15:22Z",
        //             "is_post_only": false,
        //             "time_triggered": "2019-08-24T14:15:22Z",
        //             "trigger_price": "1234.5678"
        //         },
        //         "trades": [
        //             {
        //                 "fee": {
        //                     "fee_amount": "0.0014",
        //                     "fee_currency": "BTC",
        //                     "fee_percentage": "0.1",
        //                     "fee_group_id": "default",
        //                     "fee_type": "TAKER",
        //                     "running_trading_volume": "0.0"
        //                 },
        //                 "trade": {
        //                     "trade_id": "fdff2bcc-37d6-4a2d-92a5-46e09c868664",
        //                     "order_id": "36bb2437-7402-4794-bf26-4bdf03526439",
        //                     "account_id": "a4c699f6-338d-4a26-941f-8f9853bfc4b9",
        //                     "amount": "1.4",
        //                     "side": "BUY",
        //                     "instrument_code": "BTC_EUR",
        //                     "price": "7341.4",
        //                     "time": "2019-09-27T15:05:32.564Z",
        //                     "sequence": 48670
        //                 }
        //             }
        //         ]
        //     }
        //
        const rawOrder = this.safeValue (order, 'order', order);
        const id = this.safeString (rawOrder, 'order_id');
        const clientOrderId = this.safeString (rawOrder, 'client_id');
        const timestamp = this.parse8601 (this.safeString (rawOrder, 'time'));
        const rawStatus = this.parseOrderStatus (this.safeString (rawOrder, 'status'));
        const status = this.parseOrderStatus (rawStatus);
        const marketId = this.safeString (rawOrder, 'instrument_code');
        const symbol = this.safeSymbol (marketId, market, '_');
        const price = this.safeString (rawOrder, 'price');
        const amount = this.safeString (rawOrder, 'amount');
        const filled = this.safeString (rawOrder, 'filled_amount');
        const side = this.safeStringLower (rawOrder, 'side');
        const type = this.safeStringLower (rawOrder, 'type');
        const timeInForce = this.parseTimeInForce (this.safeString (rawOrder, 'time_in_force'));
        const stopPrice = this.safeNumber (rawOrder, 'trigger_price');
        const postOnly = this.safeValue (rawOrder, 'is_post_only');
        const rawTrades = this.safeValue (order, 'trades', []);
        return this.safeOrder ({
            'id': id,
            'clientOrderId': clientOrderId,
            'info': order,
            'timestamp': timestamp,
            'datetime': this.iso8601 (timestamp),
            'lastTradeTimestamp': undefined,
            'symbol': symbol,
            'type': type,
            'timeInForce': timeInForce,
            'postOnly': postOnly,
            'side': side,
            'price': price,
            'stopPrice': stopPrice,
            'triggerPrice': stopPrice,
            'amount': amount,
            'cost': undefined,
            'average': undefined,
            'filled': filled,
            'remaining': undefined,
            'status': status,
            // 'fee': undefined,
            'trades': rawTrades,
        }, market);
    }

    parseTimeInForce (timeInForce: Str) {
        const timeInForces: Dict = {
            'GOOD_TILL_CANCELLED': 'GTC',
            'GOOD_TILL_TIME': 'GTT',
            'IMMEDIATE_OR_CANCELLED': 'IOC',
            'FILL_OR_KILL': 'FOK',
        };
        return this.safeString (timeInForces, timeInForce, timeInForce);
    }

    /**
     * @method
     * @name onetrading#createOrder
     * @description create a trade order
     * @see https://docs.onetrading.com/#create-order
     * @param {string} symbol unified symbol of the market to create an order in
     * @param {string} type 'market' or 'limit'
     * @param {string} side 'buy' or 'sell'
     * @param {float} amount how much of currency you want to trade in units of base currency
     * @param {float} [price] the price at which the order is to be fulfilled, in units of the quote currency, ignored in market orders
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @param {float} [params.triggerPrice] onetrading only does stop limit orders and does not do stop market
     * @returns {object} an [order structure]{@link https://docs.ccxt.com/#/?id=order-structure}
     */
    async createOrder (symbol: string, type: OrderType, side: OrderSide, amount: number, price: Num = undefined, params = {}) {
        await this.loadMarkets ();
        const market = this.market (symbol);
        const uppercaseType = type.toUpperCase ();
        const request: Dict = {
            'instrument_code': market['id'],
            'type': uppercaseType, // LIMIT, MARKET, STOP
            'side': side.toUpperCase (), // or SELL
            'amount': this.amountToPrecision (symbol, amount),
            // "price": "1234.5678", // required for LIMIT and STOP orders
            // "client_id": "d75fb03b-b599-49e9-b926-3f0b6d103206", // optional
            // "time_in_force": "GOOD_TILL_CANCELLED", // limit orders only, GOOD_TILL_CANCELLED, GOOD_TILL_TIME, IMMEDIATE_OR_CANCELLED and FILL_OR_KILL
            // "expire_after": "2020-07-02T19:40:13Z", // required for GOOD_TILL_TIME
            // "is_post_only": false, // limit orders only, optional
            // "trigger_price": "1234.5678" // required for stop orders
        };
        let priceIsRequired = false;
        if (uppercaseType === 'LIMIT' || uppercaseType === 'STOP') {
            priceIsRequired = true;
        }
        const triggerPrice = this.safeNumberN (params, [ 'triggerPrice', 'trigger_price', 'stopPrice' ]);
        if (triggerPrice !== undefined) {
            if (uppercaseType === 'MARKET') {
                throw new BadRequest (this.id + ' createOrder() cannot place stop market orders, only stop limit');
            }
            request['trigger_price'] = this.priceToPrecision (symbol, triggerPrice);
            request['type'] = 'STOP';
            params = this.omit (params, [ 'triggerPrice', 'trigger_price', 'stopPrice' ]);
        } else if (uppercaseType === 'STOP') {
            throw new ArgumentsRequired (this.id + ' createOrder() requires a triggerPrice param for ' + type + ' orders');
        }
        if (priceIsRequired) {
            request['price'] = this.priceToPrecision (symbol, price);
        }
        const clientOrderId = this.safeString2 (params, 'clientOrderId', 'client_id');
        if (clientOrderId !== undefined) {
            request['client_id'] = clientOrderId;
            params = this.omit (params, [ 'clientOrderId', 'client_id' ]);
        }
        const response = await this.privatePostAccountOrders (this.extend (request, params));
        //
        //     {
        //         "order_id": "d5492c24-2995-4c18-993a-5b8bf8fffc0d",
        //         "client_id": "d75fb03b-b599-49e9-b926-3f0b6d103206",
        //         "account_id": "a4c699f6-338d-4a26-941f-8f9853bfc4b9",
        //         "instrument_code": "BTC_EUR",
        //         "time": "2019-08-01T08:00:44.026Z",
        //         "side": "BUY",
        //         "price": "5000",
        //         "amount": "1",
        //         "filled_amount": "0.5",
        //         "type": "LIMIT",
        //         "time_in_force": "GOOD_TILL_CANCELLED"
        //     }
        //
        return this.parseOrder (response, market);
    }

    /**
     * @method
     * @name onetrading#cancelOrder
     * @description cancels an open order
     * @param {string} id order id
     * @param {string} symbol not used by bitmex cancelOrder ()
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} An [order structure]{@link https://docs.ccxt.com/#/?id=order-structure}
     */
    async cancelOrder (id: string, symbol: Str = undefined, params = {}) {
        await this.loadMarkets ();
        const clientOrderId = this.safeString2 (params, 'clientOrderId', 'client_id');
        params = this.omit (params, [ 'clientOrderId', 'client_id' ]);
        let method = 'privateDeleteAccountOrdersOrderId';
        const request: Dict = {};
        if (clientOrderId !== undefined) {
            method = 'privateDeleteAccountOrdersClientClientId';
            request['client_id'] = clientOrderId;
        } else {
            request['order_id'] = id;
        }
        const response = await this[method] (this.extend (request, params));
        //
        // responds with an empty body
        //
        return response;
    }

    /**
     * @method
     * @name onetrading#cancelAllOrders
     * @description cancel all open orders
     * @param {string} symbol unified market symbol, only orders in the market of this symbol are cancelled when symbol is not undefined
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object[]} a list of [order structures]{@link https://docs.ccxt.com/#/?id=order-structure}
     */
    async cancelAllOrders (symbol: Str = undefined, params = {}) {
        await this.loadMarkets ();
        const request: Dict = {};
        if (symbol !== undefined) {
            const market = this.market (symbol);
            request['instrument_code'] = market['id'];
        }
        const response = await this.privateDeleteAccountOrders (this.extend (request, params));
        //
        //     [
        //         "a10e9bd1-8f72-4cfe-9f1b-7f1c8a9bd8ee"
        //     ]
        //
        return response;
    }

    /**
     * @method
     * @name onetrading#cancelOrders
     * @description cancel multiple orders
     * @param {string[]} ids order ids
     * @param {string} symbol unified market symbol, default is undefined
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} an list of [order structures]{@link https://docs.ccxt.com/#/?id=order-structure}
     */
    async cancelOrders (ids, symbol: Str = undefined, params = {}) {
        await this.loadMarkets ();
        const request: Dict = {
            'ids': ids.join (','),
        };
        const response = await this.privateDeleteAccountOrders (this.extend (request, params));
        //
        //     [
        //         "a10e9bd1-8f72-4cfe-9f1b-7f1c8a9bd8ee"
        //     ]
        //
        return response;
    }

    /**
     * @method
     * @name onetrading#fetchOrder
     * @description fetches information on an order made by the user
     * @param {string} id the order id
     * @param {string} symbol not used by onetrading fetchOrder
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object} An [order structure]{@link https://docs.ccxt.com/#/?id=order-structure}
     */
    async fetchOrder (id: string, symbol: Str = undefined, params = {}) {
        await this.loadMarkets ();
        const request: Dict = {
            'order_id': id,
        };
        const response = await this.privateGetAccountOrdersOrderId (this.extend (request, params));
        //
        //     {
        //         "order": {
        //             "order_id": "36bb2437-7402-4794-bf26-4bdf03526439",
        //             "account_id": "a4c699f6-338d-4a26-941f-8f9853bfc4b9",
        //             "time_last_updated": "2019-09-27T15:05:35.096Z",
        //             "sequence": 48782,
        //             "price": "7349.2",
        //             "filled_amount": "100.0",
        //             "status": "FILLED_FULLY",
        //             "amount": "100.0",
        //             "instrument_code": "BTC_EUR",
        //             "side": "BUY",
        //             "time": "2019-09-27T15:05:32.063Z",
        //             "type": "MARKET"
        //         },
        //         "trades": [
        //             {
        //                 "fee": {
        //                     "fee_amount": "0.0014",
        //                     "fee_currency": "BTC",
        //                     "fee_percentage": "0.1",
        //                     "fee_group_id": "default",
        //                     "fee_type": "TAKER",
        //                     "running_trading_volume": "0.0"
        //                 },
        //                 "trade": {
        //                     "trade_id": "fdff2bcc-37d6-4a2d-92a5-46e09c868664",
        //                     "order_id": "36bb2437-7402-4794-bf26-4bdf03526439",
        //                     "account_id": "a4c699f6-338d-4a26-941f-8f9853bfc4b9",
        //                     "amount": "1.4",
        //                     "side": "BUY",
        //                     "instrument_code": "BTC_EUR",
        //                     "price": "7341.4",
        //                     "time": "2019-09-27T15:05:32.564Z",
        //                     "sequence": 48670
        //                 }
        //             }
        //         ]
        //     }
        //
        return this.parseOrder (response);
    }

    /**
     * @method
     * @name onetrading#fetchOpenOrders
     * @description fetch all unfilled currently open orders
     * @param {string} symbol unified market symbol
     * @param {int} [since] the earliest time in ms to fetch open orders for
     * @param {int} [limit] the maximum number of  open orders structures to retrieve
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {Order[]} a list of [order structures]{@link https://docs.ccxt.com/#/?id=order-structure}
     */
    async fetchOpenOrders (symbol: Str = undefined, since: Int = undefined, limit: Int = undefined, params = {}): Promise<Order[]> {
        await this.loadMarkets ();
        const request: Dict = {
            // 'from': this.iso8601 (since),
            // 'to': this.iso8601 (this.milliseconds ()), // max range is 100 days
            // 'instrument_code': market['id'],
            // 'with_cancelled_and_rejected': false, // default is false, orders which have been cancelled by the user before being filled or rejected by the system as invalid, additionally, all inactive filled orders which would return with "with_just_filled_inactive"
            // 'with_just_filled_inactive': false, // orders which have been filled and are no longer open, use of "with_cancelled_and_rejected" extends "with_just_filled_inactive" and in case both are specified the latter is ignored
            // 'with_just_orders': false, // do not return any trades corresponsing to the orders, it may be significanly faster and should be used if user is not interesting in trade information
            // 'max_page_size': 100,
            // 'cursor': 'string', // pointer specifying the position from which the next pages should be returned
        };
        let market = undefined;
        if (symbol !== undefined) {
            market = this.market (symbol);
            request['instrument_code'] = market['id'];
        }
        if (since !== undefined) {
            const to = this.safeString (params, 'to');
            if (to === undefined) {
                throw new ArgumentsRequired (this.id + ' fetchOpenOrders() requires a "to" iso8601 string param with the since argument is specified, max range is 100 days');
            }
            request['from'] = this.iso8601 (since);
        }
        if (limit !== undefined) {
            request['max_page_size'] = limit;
        }
        const response = await this.privateGetAccountOrders (this.extend (request, params));
        //
        //     {
        //         "order_history": [
        //             {
        //                 "order": {
        //                     "trigger_price": "12089.88",
        //                     "order_id": "d453ca12-c650-46dd-9dee-66910d96bfc0",
        //                     "account_id": "ef3a5f4c-cfcd-415e-ba89-5a9abf47b28a",
        //                     "instrument_code": "BTC_USDT",
        //                     "time": "2019-08-23T10:02:31.663Z",
        //                     "side": "SELL",
        //                     "price": "10159.76",
        //                     "average_price": "10159.76",
        //                     "amount": "0.2",
        //                     "filled_amount": "0.2",
        //                     "type": "STOP",
        //                     "sequence": 8,
        //                     "status": "FILLED_FULLY"
        //                 },
        //                 "trades": [
        //                     {
        //                         "fee": {
        //                             "fee_amount": "0.4188869",
        //                             "fee_currency": "USDT",
        //                             "fee_percentage": "0.1",
        //                             "fee_group_id": "default",
        //                             "fee_type": "TAKER",
        //                             "running_trading_volume": "0.0"
        //                         },
        //                         "trade": {
        //                             "trade_id": "ec82896f-fd1b-4cbb-89df-a9da85ccbb4b",
        //                             "order_id": "d453ca12-c650-46dd-9dee-66910d96bfc0",
        //                             "account_id": "ef3a5f4c-cfcd-415e-ba89-5a9abf47b28a",
        //                             "amount": "0.2",
        //                             "side": "SELL",
        //                             "instrument_code": "BTC_USDT",
        //                             "price": "10159.76",
        //                             "time": "2019-08-23T10:02:32.663Z",
        //                             "sequence": 9
        //                         }
        //                     }
        //                 ]
        //             },
        //             {
        //                 "order": {
        //                     "order_id": "5151a99e-f414-418f-8cf1-2568d0a63ea5",
        //                     "account_id": "ef3a5f4c-cfcd-415e-ba89-5a9abf47b28a",
        //                     "instrument_code": "BTC_USDT",
        //                     "time": "2019-08-23T10:01:36.773Z",
        //                     "side": "SELL",
        //                     "price": "12289.88",
        //                     "amount": "0.5",
        //                     "filled_amount": "0.0",
        //                     "type": "LIMIT",
        //                     "sequence": 7,
        //                     "status": "OPEN"
        //                 },
        //                 "trades": []
        //             },
        //             {
        //                 "order": {
        //                     "order_id": "ac80d857-75e1-4733-9070-fd4288395fdc",
        //                     "account_id": "ef3a5f4c-cfcd-415e-ba89-5a9abf47b28a",
        //                     "instrument_code": "BTC_USDT",
        //                     "time": "2019-08-23T10:01:25.031Z",
        //                     "side": "SELL",
        //                     "price": "11089.88",
        //                     "amount": "0.1",
        //                     "filled_amount": "0.0",
        //                     "type": "LIMIT",
        //                     "sequence": 6,
        //                     "status": "OPEN"
        //                 },
        //                 "trades": []
        //             }
        //         ],
        //         "max_page_size": 100
        //     }
        //
        const orderHistory = this.safeList (response, 'order_history', []);
        return this.parseOrders (orderHistory, market, since, limit);
    }

    /**
     * @method
     * @name onetrading#fetchClosedOrders
     * @description fetches information on multiple closed orders made by the user
     * @param {string} symbol unified market symbol of the market orders were made in
     * @param {int} [since] the earliest time in ms to fetch orders for
     * @param {int} [limit] the maximum number of order structures to retrieve
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {Order[]} a list of [order structures]{@link https://docs.ccxt.com/#/?id=order-structure}
     */
    async fetchClosedOrders (symbol: Str = undefined, since: Int = undefined, limit: Int = undefined, params = {}): Promise<Order[]> {
        const request: Dict = {
            'with_cancelled_and_rejected': true, // default is false, orders which have been cancelled by the user before being filled or rejected by the system as invalid, additionally, all inactive filled orders which would return with "with_just_filled_inactive"
        };
        return await this.fetchOpenOrders (symbol, since, limit, this.extend (request, params));
    }

    /**
     * @method
     * @name onetrading#fetchOrderTrades
     * @description fetch all the trades made from a single order
     * @param {string} id order id
     * @param {string} symbol unified market symbol
     * @param {int} [since] the earliest time in ms to fetch trades for
     * @param {int} [limit] the maximum number of trades to retrieve
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {object[]} a list of [trade structures]{@link https://docs.ccxt.com/#/?id=trade-structure}
     */
    async fetchOrderTrades (id: string, symbol: Str = undefined, since: Int = undefined, limit: Int = undefined, params = {}) {
        await this.loadMarkets ();
        const request: Dict = {
            'order_id': id,
            // 'max_page_size': 100,
            // 'cursor': 'string', // pointer specifying the position from which the next pages should be returned
        };
        if (limit !== undefined) {
            request['max_page_size'] = limit;
        }
        const response = await this.privateGetAccountOrdersOrderIdTrades (this.extend (request, params));
        //
        //     {
        //         "trade_history": [
        //             {
        //                 "trade": {
        //                     "trade_id": "2b42efcd-d5b7-4a56-8e12-b69ffd68c5ef",
        //                     "order_id": "66756a10-3e86-48f4-9678-b634c4b135b2",
        //                     "account_id": "c2d0076a-c20d-41f8-9e9a-1a1d028b2b58",
        //                     "amount": "1234.5678",
        //                     "side": "BUY",
        //                     "instrument_code": "BTC_EUR",
        //                     "price": "1234.5678",
        //                     "time": "2019-08-24T14:15:22Z",
        //                     "price_tick_sequence": 0,
        //                     "sequence": 123456789
        //                 },
        //                 "fee": {
        //                     "fee_amount": "1234.5678",
        //                     "fee_percentage": "1234.5678",
        //                     "fee_group_id": "default",
        //                     "running_trading_volume": "1234.5678",
        //                     "fee_currency": "BTC",
        //                     "fee_type": "TAKER"
        //                 }
        //             }
        //         ],
        //         "max_page_size": 0,
        //         "cursor": "string"
        //     }
        //
        const tradeHistory = this.safeValue (response, 'trade_history', []);
        let market = undefined;
        if (symbol !== undefined) {
            market = this.market (symbol);
        }
        return this.parseTrades (tradeHistory, market, since, limit);
    }

    /**
     * @method
     * @name onetrading#fetchMyTrades
     * @description fetch all trades made by the user
     * @param {string} symbol unified market symbol
     * @param {int} [since] the earliest time in ms to fetch trades for
     * @param {int} [limit] the maximum number of trades structures to retrieve
     * @param {object} [params] extra parameters specific to the exchange API endpoint
     * @returns {Trade[]} a list of [trade structures]{@link https://docs.ccxt.com/#/?id=trade-structure}
     */
    async fetchMyTrades (symbol: Str = undefined, since: Int = undefined, limit: Int = undefined, params = {}) {
        await this.loadMarkets ();
        const request: Dict = {
            // 'from': this.iso8601 (since),
            // 'to': this.iso8601 (this.milliseconds ()), // max range is 100 days
            // 'instrument_code': market['id'],
            // 'max_page_size': 100,
            // 'cursor': 'string', // pointer specifying the position from which the next pages should be returned
        };
        let market = undefined;
        if (symbol !== undefined) {
            market = this.market (symbol);
            request['instrument_code'] = market['id'];
        }
        if (since !== undefined) {
            const to = this.safeString (params, 'to');
            if (to === undefined) {
                throw new ArgumentsRequired (this.id + ' fetchMyTrades() requires a "to" iso8601 string param with the since argument is specified, max range is 100 days');
            }
            request['from'] = this.iso8601 (since);
        }
        if (limit !== undefined) {
            request['max_page_size'] = limit;
        }
        const response = await this.privateGetAccountTrades (this.extend (request, params));
        //
        //     {
        //         "trade_history": [
        //             {
        //                 "trade": {
        //                     "trade_id": "2b42efcd-d5b7-4a56-8e12-b69ffd68c5ef",
        //                     "order_id": "66756a10-3e86-48f4-9678-b634c4b135b2",
        //                     "account_id": "c2d0076a-c20d-41f8-9e9a-1a1d028b2b58",
        //                     "amount": "1234.5678",
        //                     "side": "BUY",
        //                     "instrument_code": "BTC_EUR",
        //                     "price": "1234.5678",
        //                     "time": "2019-08-24T14:15:22Z",
        //                     "price_tick_sequence": 0,
        //                     "sequence": 123456789
        //                 },
        //                 "fee": {
        //                     "fee_amount": "1234.5678",
        //                     "fee_percentage": "1234.5678",
        //                     "fee_group_id": "default",
        //                     "running_trading_volume": "1234.5678",
        //                     "fee_currency": "BTC",
        //                     "fee_type": "TAKER"
        //                 }
        //             }
        //         ],
        //         "max_page_size": 0,
        //         "cursor": "string"
        //     }
        //
        const tradeHistory = this.safeList (response, 'trade_history', []);
        return this.parseTrades (tradeHistory, market, since, limit);
    }

    sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
        let url = this.urls['api'][api] + '/' + this.version + '/' + this.implodeParams (path, params);
        const query = this.omit (params, this.extractParams (path));
        if (api === 'public') {
            if (Object.keys (query).length) {
                url += '?' + this.urlencode (query);
            }
        } else if (api === 'private') {
            this.checkRequiredCredentials ();
            headers = {
                'Accept': 'application/json',
                'Authorization': 'Bearer ' + this.apiKey,
            };
            if (method === 'POST') {
                body = this.json (query);
                headers['Content-Type'] = 'application/json';
            } else {
                if (Object.keys (query).length) {
                    url += '?' + this.urlencode (query);
                }
            }
        }
        return { 'url': url, 'method': method, 'body': body, 'headers': headers };
    }

    handleErrors (code: int, reason: string, url: string, method: string, headers: Dict, body: string, response, requestHeaders, requestBody) {
        if (response === undefined) {
            return undefined;
        }
        //
        //     {"error":"MISSING_FROM_PARAM"}
        //     {"error":"MISSING_TO_PARAM"}
        //     {"error":"CANDLESTICKS_TIME_RANGE_TOO_BIG"}
        //
        const message = this.safeString (response, 'error');
        if (message !== undefined) {
            const feedback = this.id + ' ' + body;
            this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
            this.throwBroadlyMatchedException (this.exceptions['broad'], message, feedback);
            throw new ExchangeError (feedback); // unknown message
        }
        return undefined;
    }
}
